Fred Hutchinson Cancer Research Center
BlockS WWW server.
At least two protein sequences must be provided to make blocks.
Each sequence must have a unique name of 10 characters or less.
If you have the accession numbers of some sequences you would like to use,
Batch Entrez can create a file for you in
It may take several minutes to
process your sequences. If you are not prepared to wait for a response,
or have more than 25 sequences or more than 15,000 amino acids,
please provide an email address and your
results will be returned to you in two messages. The second
message contains your blocks in
Blocks Database format,
and you can copy and paste these into the
Multiple Alignment Processor
to search sequence database using
and to predict PCR primers using CODEHOPs.
The Block Maker email server currently accepts up to 250 sequences and
100,000 amino acids.
You can mail your sequences directly to it at
Enter a short description of your group of sequences:
Enter the name of a file containing your protein sequences:
Enter your protein sequences in a single format (e.g.
Note: It may take several minutes to compute the results:
Please be patient.
Page last modified on Jul 2004